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J. K. WILLIAMS. VULCANIZER. APPLICATION FILED oE c. I9, 1927.

Patented July 1, 1919.

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JOHN K. WILLIAMS, F AKRON, OHIO, ASSIGNOR T0 TI-IE WZlLLIAMS FOUNDRY.AND

MACHINE GOMPANY, 0F AKRON, OHIO,-A CORPORATION OF OHIO.

VULCAIN'IZER.

Specification of Letters Patent.

Patented July 1, 1919.

Application filed December 19, 1917. serial No. 207,827.

To aZZ whom it may concern:

Be it known. that I, J OHN K. WILLIAMS, a

citizen of the United States, and a resident of Akron, county of Summit,and State of Ohio, have invaded a new and useful Inn provement inVulcanizers, of which the fol lowing is a specification, the principleof the invention being herein explained and the best mode in which Ihave contemplated applying that principle, so as to distinguish it fromother inventions.

The present invention, relating, as indi cated, to vulcanizers', isparticularly conce'ined with an improved repair vulcanizer of a ty aswhich is well known and which is cormon use for the repairing of indiidual tire casings when it is desired to in-,

sort and. vulcanize into position a short section of easing. One of theobjects of the invention is the provision of such a vulcanizer which issimple to operate and less liable to breakage than those now in generaluse,

' while other objects will appear from the followingdescription. To theaccomplishment of the foregoing and related ends, said invention, then,consists of the means hereinait'ter fully described and particularlypointed out in the claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying the mvention, such disclosed meansconstituting, however; but one .of various mechanical forms in which theprinciple of the invention may be used.

In said annexed drawing Figure 1 is a side elevat on of my 1mprovedvulcanizer apart from its support;

and Fig. 2 is a section of the same on the line 2-2 in Fig. 1.

In Fig. 1 there is shown a frame 1 curved to conform to the curvature oftires of the desired size and provided with spaced Walls 2 and 3, whichare hollow and are formed with steam chambers 4. The side members orplates 2 and 8 are formed at either end with projecting bosses '5adapted to receive bolts 6 for securely fastening together these twomembers. The ordinary repair vulcanizer, which is in general use for therepairing of tire casings, is provided with a bottom portionformed'integral with the two side members and interiorly curved to conform with the configuration of the tire that is to be repaired. 'In suchrepair vulcanizers, the tire is forced into firm contact with thesidewalls and the bottom of the vulcanlzer by' means of head strips orplates conforming to the shape of the beads of the tireand movableverticallybetween theside walls of the vulcanizer'to force the. tire 7against the bottom of the chamber. The

upper and removable bead members have to be formed with thin edges inorder not to wedge the edges of the tire away from the Walls of thevulcanizer. bead members are removed after the vulcamzmg" operation,they are often thrown carelessly on the Hour andeven when they areformed of cast steel, the thin edges or fins are often broken. Caststeel is an expensiv material, which should not have to -be used in adevice of thls character, but

it has heretofore been impossible to avoid its use for the above reason,and the present invention is intended to obviate the necesslty of usingsuch an expensive material by providing a vulcanizer in which theremovable parts are not formed with any thin,

a tight sliding fit between the walls 2 and- 3 of the frame, which arealso machined to a smooth surface. This bottom member 7 is provided witha steam chamber 9 which may be connected with the steam chambers 4 ofthe side members or may be connected directly with a source of supply,as may be convenient: Adjustment of the bottom member 7 is secured bymeans of hand screws 10, of which there are two, operating in yokes 11,which are secured in fixed positions by means of bolts 12 engaging thetwo side members of the frame.

In order to keep the tire securely against the bottom member of thevulcanizer during the vulcanizinp operation, I employ two bead members13 and 14, which, when fitted together in the manner shown in Fig. 2,op-

erate to engage the base flanges of the tire.

These bead members 18 and 14 are provided with inwardly extendingflanges 15, having square edges which seat against shoulders 16 formedinthe walls 2 and 3 and the bead When thesemembers areso vformed thatthe portions of 16 meet smoothly, with the such devices. 7

their inner walisadjacent to the shoulders side Walls 2 and adapted toreceive retaining bolts 18 which look the" two bead members, together;and when in engagement ,on the tirethebead member-is movedintoengagement with the shoulders 16 by means of a hand bolt 19' in ayoke 20 which is mounted onvthe plates 21, as is customary inInoperation, the bead members 14am first engaged firmly about the baseflanges of the tire at the point which is to be repaired and theninserted in the space between theside Walls 2 and 3 of the vulcanizer.

The handbolt 19 is then operated to force v the fiangesinthe beads homeagainst the shoulders 16 in the side walls and When these bead membersare so positioned, the

ifhand bolts-10 are turned until the sliding bottommember 7 is v 'is'riopossibility a these thin finS,"Wl1ll6 the convenient as in thoseheretofore used.

-forced firmly against '.the tread portion of the tire. The only thin I25 bottom member 7, and as this member need flanges or fins are those onthe edges of the never'be removed from the vulcanizer, there ofbreakage-or injury to I operation of the present: vulcanizer is full Ias simple and I have not thought it necessary to' describe xthe steamchambers formed in the various I gards the mechanism, herein disclosed,

type.

parts of th'e-vulca'nizer as these serve the same purpose and aresimilarly arranged and operated as the corresponding features ofpreviousvulcanizers of this'same general Othermodesof applying theprinciple of my invention may be employed instead of the one explained,change being made as repro- I vided the means'stated by any of thefollowing claims or the equivalent of such stated means be employed.

r I therefore particularly point out and distinctly claim as myinvention:

'lQIn a vulcanizer, the combination of walls of said chambers,

her openat opposite'sides member slidably mounted between said.

chambers said member conforming with the tread surface of the tirecasing and having its edges adapted to smoothly meet the walls of saidchambers; H i 2. In a vulcanizer, the combinat n of heating chambersadapted to receive-e tire casing therebetween, said chambers :pQln gprovided with inset shoulders in their, adjacent Walls, tire-engagingbead v n'iembcrs adapted to fit against such shoulders, a ho]- lowmember mounted between said chambers, said member conforming with thetread surface of the tire casing and having narrow edges adapted to meetsmeothly the and means adapted to move said member between said chamberstoward and away from said bead members.

3. The combination of a vuleanizin'g chamand provided with stop memberstherein, bead members adapted to engage the base'iofn tire and movablewithin said chamber into engagement with said stop members, :n'd movablemeans mounted within s'aid ch'amber 'and'opcrable to engage against, andpartially iliclose, the tread portion of a tire h'eld iusaid chamber.

4. The combination offa vulcanizing chamber open at opposite sides andprovided with stop members therein, bead members adapted to engage thebase of a tire and movable within'said chamber into" enga cment withsaid stop members, and mova le means mounted within said chamber andoperabletoengage against, and partially-inclose,the tread portion of atire hcldin said chamber, the walls of said ,vnlcanizing chamber andsaid movable means. being provided with means adapted to heat the same,and therethrough, such tire. i Signed by me, this 8 day of Dec 1917.

Jenn K. WILniAMs.

